Melancholy is nothing new in Japan. It's something that everybody know. It's everywhere: in the paintings, in the performances or in literature. Even the most saddest memes comes from anime. So sadness and melancholy is something inherent in Japan -in IRL and online- and obviously expressed through Internet. I'm not talking about the infamous suicide chats or forums, I'm referring to mental health forums, which are more common. Specially 2chan's board.